UBUNTU-CVE-2017-6519

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    UBUNTU-CVE-2017-6519

    Published: 30 Apr 2017Last Modified: 22 Apr 2026
    Upstream:
    CVE-2017-6519

    Summary:

    Details: avahi-daemon in Avahi through 0.6.32 and 0.7 inadvertently responds to IPv6 unicast queries with source addresses that are not on-link, which allows remote attackers to cause a denial of service (traffic amplification) and may cause information leakage by obtaining potentially sensitive information from the responding device via port-5353 UDP packets. NOTE: this may overlap CVE-2015-2809.

    References: https://ubuntu.com/security/CVE-2017-6519, https://www.secfu.net/advisories, https://www.kb.cert.org/vuls/id/550620, https://ubuntu.com/security/notices/USN-3876-1, https://ubuntu.com/security/notices/USN-3876-2, https://www.cve.org/CVERecord?id=CVE-2017-6519

    Affected packages

    Package

    Name: avahi

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -0.6.31-4ubuntu1.3

    Affected versions

    0.6.31-2ubuntu4
    0.6.31-2ubuntu5
    0.6.31-3ubuntu1
    0.6.31-4ubuntu1
    0.6.31-4ubuntu1.1
    0.6.31-4ubuntu1.2

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High